The result of God’s letting people become obsessed by their own depraved thoughts was that they themselves began to do all manner of evil things that God says are improper. They even approve of others doing such things.

Romans 1:28-32

28 Furthermore, because they decided that it was not worthwhile to know God, he allowed their own worthless thoughts to completely control them. As a result, they began doing evil things that God says that people should not do. 29 They strongly desire to do all kinds of unrighteous things. They strongly desire to do all kinds of evil things to others. They strongly desire to possess things that belong to others. They strongly desire to harm others in various ways. Many non-Jews are constantly envying other people. Many constantly desire to murder people. Many constantly desire to cause strife between people. Many constantly desire to deceive others. Many constantly desire to speak hatefully about others (OR, to speak harmful things about others, things that are not true). Many gossip about others. 30 Many slander others. Many act especially hatefully toward God. Many speak or act in an insulting way toward others. Many treat others contemptuously. Many boast about themselves to others. Many invent new ways to do evil things. Many non-Jewish children disobey their parents. 31 Many non-Jews act in other morally foolish ways. Many do not do what they promised others that they would do. Many do not even love their own family members. And many do not act mercifully toward other people. 32 Although they know that God has declared that those who do such things deserve to be killed, they not only habitually do these kinds of evil things, but they also approve of others who habitually do them.